Quadrilateral abcd is inscribed in the circle. if m∠a = 95°, what also must be true?
a) m∠b = 95°
b) m∠c = 85°
c) m∠d = 105°
d) m∠d = 95°

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11